| Base | Representation |
|---|---|
| bin | 10011101010100… |
| … | …11110100111000 |
| 3 | 102111102100000000 |
| 4 | 21311103310320 |
| 5 | 314213013114 |
| 6 | 24211513000 |
| 7 | 4042135320 |
| oct | 1165236470 |
| 9 | 374370000 |
| 10 | 164969784 |
| 11 | 85137271 |
| 12 | 472b8760 |
| 13 | 28240875 |
| 14 | 17ca4280 |
| 15 | e739e09 |
| hex | 9d53d38 |
164969784 has 144 divisors (see below), whose sum is σ = 531414000. Its totient is φ = 47029248.
The previous prime is 164969767. The next prime is 164969797. The reversal of 164969784 is 487969461.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a nude number because it is divisible by every one of its digits.
Its product of digits (2612736) is a multiple of the sum of its prime factors (486).
It is a self number, because there is not a number n which added to its sum of digits gives 164969784.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 367192 + ... + 367640.
It is an arithmetic number, because the mean of its divisors is an integer number (3690375).
Almost surely, 2164969784 is an apocalyptic number.
164969784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 164969784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265707000).
164969784 is an abundant number, since it is smaller than the sum of its proper divisors (366444216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
164969784 is an frugal number, since it uses more digits than its factorization.
164969784 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 486 (or 461 counting only the distinct ones).
The product of its digits is 2612736, while the sum is 54.
The square root of 164969784 is about 12844.0563686088. The cubic root of 164969784 is about 548.4471726105.
The spelling of 164969784 in words is "one hundred sixty-four million, nine hundred sixty-nine thousand, seven hundred eighty-four".
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